Test and evaluation of users ́ interaction with computers, oftenemploy Think Aloud. The assumption is that we get access to what goes onin the users ́ minds. But interfaces are multi modal with visualizations as theessential feature, and what happens when users are required to verbalisetheir visual perceptions and interactions? Reflecting upon Think Aloud, weargue that it may ...

Research Question: How do participants behave when asked to rate objects’ visual dimensions? Approach: Qualitative Data Analysis Method: 90 participants were asked to rate 11 objects located along a route of 1.1 km length and asked to explain their rating behaviour using a think-aloud protocol. Results: If asked to rate several objects, participants tend to stop reading the questions as a whole...

The paper proposes an approach to comparative usability evaluation that incorporates important relevant criteria identified in previous work. It applies the proposed approach to a case study of a comparative evaluation of an academic website employing four widely-used usability evaluation methods (UEMs): heuristic evaluation, cognitive walkthroughs, think-aloud protocol and co-discovery learning.

To explore the issue of culture in persuasive technology, we identified strategies distinguishing individualist or collectivist audiences, and developed two versions of a prototype game. In this paper we report on a qualitative study of this game. The game concerned smoking cessation, and was set in a New Zealand context, where one version was designed for individualist New Zealand Europeans, a...

Motivated by both classroom needs and learning science questions, we developed two computer-based systems to help students learn the English article system (a, an, the, null). The first system, a menu-based task, mimics cloze activities found in many ESL textbooks. The second, a controlled-editing task, gives students practice with both detecting errors and producing the correct response. Resul...

Normal individual differences are rarely considered in the modelling of visual word recognition--with item response time effects and neuropsychological disorders being given more emphasis--but such individual differences can inform and test accounts of the processes of reading. We thus had 100 participants read aloud words selected to assess theoretically important item response time effects on...

The paper introduces a new research strategy for the investigation of human translation behavior. While conventional cognitive research methods make use of think aloud protocols (TAP), we introduce and investigate UserActivity Data (UAD). UAD consists of the translator’s recorded keystroke and eye-movement behavior, which makes it possible to replay a translation session and to register the sub...

Pervasive and ubiquitous computing has come a long way in recent years, and our technologies and experimental prototypes are slowly moving out of the lab and into people’s everyday lives. In this talk I will provide an overview of such research conducted by my team over the past years, and outline the main challenges that we face in the future, particularly in terms of making our technology acc...

COLLECT-UML is an intelligent tutoring system that teaches Object-Oriented design using Unified Modelling Language (UML). UML is one of the most popular techniques used in the design and development of Object-Oriented systems nowadays. The Constraint-Based Modelling (CBM) has been used successfully in several systems and they have proved to be extremely effective in evaluations performed in rea...